#!/usr/bin/env bash
# Copyright 2021 The XLS Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Checks that the given input file(s) does not contain the string 'clk'. First,
# verify that grepping the file in general works, because '! grep' will
# "succeed" if the input file is inaccessible, for example.

set -e -x
grep . "$@"
! grep clk "$@"
